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68 lines
2.5 KiB
CMake
68 lines
2.5 KiB
CMake
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# Distributed under the OSI-approved BSD 3-Clause License. See accompanying
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# file Copyright.txt or https://cmake.org/licensing for details.
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#[=======================================================================[.rst:
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FindSWIG
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--------
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Find SWIG
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This module finds an installed SWIG. It sets the following variables:
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::
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SWIG_FOUND - set to true if SWIG is found
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SWIG_DIR - the directory where swig is installed
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SWIG_EXECUTABLE - the path to the swig executable
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SWIG_VERSION - the version number of the swig executable
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The minimum required version of SWIG can be specified using the
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standard syntax, e.g. find_package(SWIG 1.1)
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All information is collected from the SWIG_EXECUTABLE so the version
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to be found can be changed from the command line by means of setting
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SWIG_EXECUTABLE
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#]=======================================================================]
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find_program(SWIG_EXECUTABLE NAMES swig4.0 swig3.0 swig2.0 swig)
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if(SWIG_EXECUTABLE)
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execute_process(COMMAND ${SWIG_EXECUTABLE} -swiglib
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OUTPUT_VARIABLE SWIG_swiglib_output
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ERROR_VARIABLE SWIG_swiglib_error
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RESULT_VARIABLE SWIG_swiglib_result)
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if(SWIG_swiglib_result)
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if(SWIG_FIND_REQUIRED)
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message(SEND_ERROR "Command \"${SWIG_EXECUTABLE} -swiglib\" failed with output:\n${SWIG_swiglib_error}")
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else()
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message(STATUS "Command \"${SWIG_EXECUTABLE} -swiglib\" failed with output:\n${SWIG_swiglib_error}")
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endif()
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else()
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string(REGEX REPLACE "[\n\r]+" ";" SWIG_swiglib_output ${SWIG_swiglib_output})
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find_path(SWIG_DIR swig.swg PATHS ${SWIG_swiglib_output} NO_CMAKE_FIND_ROOT_PATH)
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if(SWIG_DIR)
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set(SWIG_USE_FILE ${CMAKE_CURRENT_LIST_DIR}/UseSWIG.cmake)
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execute_process(COMMAND ${SWIG_EXECUTABLE} -version
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OUTPUT_VARIABLE SWIG_version_output
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ERROR_VARIABLE SWIG_version_output
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RESULT_VARIABLE SWIG_version_result)
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if(SWIG_version_result)
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message(SEND_ERROR "Command \"${SWIG_EXECUTABLE} -version\" failed with output:\n${SWIG_version_output}")
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else()
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string(REGEX REPLACE ".*SWIG Version[^0-9.]*\([0-9.]+\).*" "\\1"
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SWIG_version_output "${SWIG_version_output}")
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set(SWIG_VERSION ${SWIG_version_output} CACHE STRING "Swig version" FORCE)
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endif()
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endif()
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endif()
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endif()
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include(${CMAKE_CURRENT_LIST_DIR}/FindPackageHandleStandardArgs.cmake)
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FIND_PACKAGE_HANDLE_STANDARD_ARGS(SWIG REQUIRED_VARS SWIG_EXECUTABLE SWIG_DIR
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VERSION_VAR SWIG_VERSION )
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mark_as_advanced(SWIG_DIR SWIG_VERSION)
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